Chemo-orientation in Flying Insects
Chemo-orientation in Flying Insects
复制标题
飞行昆虫的化学导向
DOI:
10.1007/978-1-4899-3368-3_5
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发表时间:
1984
期刊:
影响因子:
--
通讯作者:
R. Cardé
中科院分区:
文献类型:
--
作者:
R. Cardé
Our perceptions of the maneuvers and sensory inputs that animals employ to locate a stimulus have undergone continued refinement and reformulation following the efforts of Loeb (1918) and Kiihn (1919) to classify orientation mechanisms. The adduction that the principal mechanism of'long-distance'flying orientation to an airborne chemical stimulus in the wind is an optomotorguided, chemically-induced, upwind orientation (or anemotaxis) has gained wide acceptance as a considerable body of experimental evidence in support of this mechanism has accumulated, principally with moth attraction to upwind pheromone sources. Besides optomotor anemotaxis, a number of alternative tactics have been proposed; these strategies have posited the existence of either spatial or temporal distributions of chemical stimulus that, if recognized, could serve as cues to guide the responder toward the chemical source or, if not to supply cues as to its direction, at least provide information as to its proximity. But our current understanding of the'instantaneous' structure of a chemical stimulus emanating from a point source in continual or intermittent wind is imperfectly developed (see Elkinton and Carde, Chapter 3) and this limits our ability to hypothesize intelligently on alternatives to the upwind anemotaxis paradigm.The almost certainly independent evolution of upwind orientation to chemicals in different phylogenetic groups (at least at the ordinal level) and the inherent variability in environmental (particularly wind) conditions in various habitats, ranging from open grassland to dense tropical forests, may have dictated disparate as well as multiple solutions to the problem of discovering the